Denon AVR-S510BT 5.2 Channel Full 4K Ultra HD A/V Receiver with BluetoothThe AVR-S510BT 5.2 AV Receiver builds on the outstanding success of Denon's AV range over many years and delivers the latest surround sound technology with a very affordable price tag. 5 channels delivering 140W ( referenced wattage change by region) provide the power for surround sound with real impact whether you are watching a movie or playing a video game.